Refrigerator car



June 7, 1927.

L. VON DABROWSKI REFRIGERATOR vCAR Filed Feb, "7, 1925 2 Sheets-Sheet 2 vll/1111122114vIIll//IIJIlll/ll/l/)lllllll/l/llll/Illl/Ill IN VEN TOR Lofi uaamMs/h KTA/ im@ ATTORNEY A APatented JuneI 7, 1927. l

' UNITED. sr

LTHAR VON DABBOWSKI, F CHICAGO,

Arrasl ILLriNoIs, assienon 'ro vAMERICAN .om .um

FQUNIDRY COMPANY, 0F NEW YORK, N. Y., .A CORPORATION 0F NEW JERSEY.

nmnlennuroa "om Application led lebruary In the drawings:

Fig. l, is a vertical transverse section of the car showing the method of securinr the outer sheathing of the ear to the'car ramf, ing and the insulation material to the outer sheathing. l

Fig. 2 is a fragmentary view in vertical longitudinal section showing a similar construction at the end of the car.

Fig. 3 is a horizontal section of one corner of the car showing the application`of the insulation to the outside sheathing at the side andA end of the car and showing the ice compartment bulkhead in position.

Fig. 4 i's`a similar'section showing the continuation of the side wall construction of the car to the door opening; and

Fig. 5 is a vertical transverse section taken. on line 5--5-of Fig.- 3 looking in the :o direction indicated by the arrows and showing the method of assembling the` outer sheathing with the exterior framing members of the car, and securing the insulation and inside sheathing to the outer of the car.

My invention relates to refrigerator cars and has for an object the provision f a construction in which the framing elements of the car function independently of the insulating walls of the car in taking up the stresses of service. f

The principal object of this invention is to provide a single sheathed refrigerator car to secure maximumload carryin ca- Vacity with .a minimum of dead weig t.

Referring to the drawings--lO designates the center sills of the4 underframe of the car, 11 the side sills thereof, 12 the exterior uprlght side framing membe" of the -carV superstructure, and 13 theto lates there- `of. The side framing members 12 are secured'to the side sills 11 and top plates13; Secured to the framing members are the side wall boards 14 held to such members by c. means of bolts 15 or other likel fastening means. To'these lside wall boards is secured the insulation material comprising af number of layers of hair felt or other insulating fabric 16, held thereto by means of upright cleats 17 secured to the side wall boards b means of bolts 18. This insulation, it wil be noted, is held to the side wall boards by ,means inde endent of the means securing the side wall, boards to the car framing. '.10 .a complete the insulating wall structure 1nyto the boar sheathing 7, 1923. Serial lo. 617,885.

side sheathing boards 19 are rovided and thesev boards are secured to tlie insulation holding cleats 17 in any suitable manner.

The inside face of the outer wall boards 14 is rendered impervious to moisture pret'- erably by means of a water proof compound or fabric applied in any suitable manner s. In the same fashion the insula'tion side face of the inside sheathing` boards 1'9 is treated to provide an absolutely Water and air tight com artment 20 affording a dead air space to urther enhance the insulation value of the side Wall structure. The end wall is similarly constructed. The car framing end members 21 are se.- cured to the end sill 22 of the underframe and at their upper ends to the top end plates (not shown). yTo these framing end members 21 are secured the end wall sheathing boards 23 held to the framing by bolts 24, or the like, and to the end boards the insulating elements com rising the hair felt 16, cleats 17, and insi e sheathing boards 19, are secured by the bolts 25.

rAs vshown in the drawings the floor 9 and ceiling structure 8 of the car are also insulated in any approved manner, and respectively serve to seal. the lower and upper ends of the dead air space 2() in the slde wall insulation assemb1y.`

The ice compartment 26 is separated from the rovision chamber 27 by the insulated bulk ead 28 extending between the side walls' of the car and secured thereto in anyF suitable manner. v

It will bev noted that there has been provided a refrigerator car construction emlying but one course of boards to shield the niterior of the car from the elements and to tlis single course of wall boards the insulating wall elements are secured,'such insulating wall elements being supported independently of the car framing members and thus relieved of the stresses induced by the vibration set up inthe car framing. The bolts securing the outer sheathing boards to the extrior car framing members do not extend to the car interior,:nor do the bolts holding the insulation to the outer sheathing boards,threby eliminating all metallic communication between the carinterior and outside atmosphere and preventing the entrance of the warmer outer air to the car or thev escape of the colder air .of the car to the atis secured to the outer wall. The inner wally assembly formed by the insulation 16 and the inner boards '19 is made more effectively thermoinsulative by its air-cha nbering intei-space 20.

What I claim is:

1. A refrigerator car construction comprising an exterior wall with its framing,

.and an inner wall carried by said exterior wall but spaced therefrom, and secured to said exterior wall without direct thermoconductive connection to said framing.

2. A refrigeratni car construction comprising an exterior wall with external framing vand internal insulation secured thereto independently of said framing and without direct thermoconductive connection thereto,.

and an inner wall carried by said exterior wall, but spaced from its internal insulation, and secured to said exterior wall without direct thermoconductive connection to said framing.

3. A refrigerator car construction comh prisingan exterior wall with external frampendently of said framing and withoutdirect thermoconductive connection thereto,-

and an inner wall spaced from the insulation of said external wall and carried from said external wall through the means securing its insulation as aforesaid. A

4. A refrigerator car construction comprising an exterior wall with external framing and wall boards secured thereto, an insulative lining on said exterior wall, with cleats securing the same to said wall boards without direct thermoconductive connection to said framing, and an inner wall of boards carried by said cleats.

5. A refrigerator car construction comprisihg an exterior wall with external framing, and an insulative inner wall assembly carried by said exterior wall Vand secured thereto without direct thermoconductive connection to said framing. .l

6. A refrigerator car construction comprising an exterior wall with its framing, and an air chambered insulative inner wall assembly carried by said exterior wall and secured thereto independently of said framing and without direct thermoconductive connection thereto.

In witness whereof I have hereunto set my and. y

LOTHAR voN DABROWSKI. 

